`ModuleNotFoundError: No module named 'kachery_cloud.TaskBackend'` from figurl_jupyter

[alejoe91]

[magland]

@alejoe91 could you provide some more details on when this error occurs? (seems like an old version of kachery cloud)

[alejoe91]

No this occurs with the new Kachery-cloud (0.4.2) when using the display function from figurl jupyter. Here's the full error stack:

---------------------------------------------------------------------------
ModuleNotFoundError                       Traceback (most recent call last)
Input In [10], in <cell line: 1>()
----> 1 sw.plot_unit_locations(we, backend="sortingview", display=True)

File ~/Documents/codes/spike_sorting/spikeinterface/spikeinterface/src/spikeinterface/widgets/base.py:120, in define_widget_function_from_class.<locals>.widget_func(*args, **kwargs)
    117 @copy_signature(widget_class)
    118 def widget_func(*args, **kwargs):
    119     W = widget_class(*args, **kwargs)
--> 120     W.do_plot(W.backend, **W.backend_kwargs)
    121     return W.plotter

File ~/Documents/codes/spike_sorting/spikeinterface/spikeinterface/src/spikeinterface/widgets/base.py:53, in BaseWidget.do_plot(self, backend, **backend_kwargs)
     51 plotter = self.possible_backends[backend]()
     52 self.check_backend_kwargs(plotter, backend, **backend_kwargs)
---> 53 plotter.do_plot(self.plot_data, **backend_kwargs)
     54 self.plotter = plotter

File ~/Documents/codes/spike_sorting/spikeinterface/spikeinterface/src/spikeinterface/widgets/sortingview/unit_locations.py:40, in UnitLocationsPlotter.do_plot(self, data_plot, **backend_kwargs)
     37 else:
     38     view = v_unit_locations
---> 40 self.handle_display_and_url(view, **backend_kwargs)
     41 return view

File ~/Documents/codes/spike_sorting/spikeinterface/spikeinterface/src/spikeinterface/widgets/sortingview/base_sortingview.py:47, in SortingviewPlotter.handle_display_and_url(self, view, **backend_kwargs)
     45 self.set_view(view)
     46 if self.is_notebook() and backend_kwargs["display"]:
---> 47     display(self.view.jupyter(height=backend_kwargs["height"]))
     48 if backend_kwargs["generate_url"]:
     49     figlabel = backend_kwargs.get("figlabel")

File ~/anaconda3/envs/si/lib/python3.9/site-packages/sortingview/views/View.py:100, in View.jupyter(self, height)
     98 if height is None:
     99     height = self._height
--> 100 import figurl_jupyter as fj
    101 url = self.url(label='jupyter', local=True, electron=False, listen_port=None)
    102 a = _parse_figurl_url(url)

File ~/anaconda3/envs/si/lib/python3.9/site-packages/figurl_jupyter/__init__.py:7, in <module>
      1 #!/usr/bin/env python
      2 # coding: utf-8
      3 
      4 # Copyright (c) Jeremy Magland.
      5 # Distributed under the terms of the Modified BSD License.
----> 7 from .FigurlFigure import FigurlFigure
      8 from ._version import __version__, version_info
     10 def _jupyter_labextension_paths():

File ~/anaconda3/envs/si/lib/python3.9/site-packages/figurl_jupyter/FigurlFigure.py:17, in <module>
     15 import kachery_cloud as kcl
     16 from ._frontend import module_name, module_version
---> 17 from kachery_cloud.TaskBackend.TaskBackend import TaskHandler
     18 from kachery_cloud._json_stringify_deterministic import _json_stringify_deterministic
     19 from kachery_cloud._serialize import _serialize

ModuleNotFoundError: No module named 'kachery_cloud.TaskBackend'

[magland]

Sorry! I stopped supporting jupyter widgets as part of sortingview -- nobody was using it as far as I could see, and it is difficult to maintain with various updates to jupyter. It's possible we could get this to work again by disabling the task backend part of it...

[alejoe91]

Ok, please let us know about these changes! In spikeinterface figurl_jupyter is a required package....honestly I think it was very usefule!

[samuelgarcia]

hi Jeremy. I also think that this is a veryuselfull feature because we can use the visualisation without pushing data which is very very convinient.